private function display_addpage()
 {
     global $rep, $views;
     $countries = Model_user::get_countries();
     require $rep . $views['add_adventure'];
 }
 private function display_sign_up()
 {
     global $rep, $views, $errors;
     $countries = Model_user::get_countries();
     require $rep . $views["sign_up"];
 }